infra: add collaborators to .asf.yaml (#1842)

## Which issue does this PR close?

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- Closes #.

## What changes are included in this PR?
Add @mbutrovich and @CTTY as collaborator. 

From
https://github.com/apache/infrastructure-asfyaml?tab=readme-ov-file#assigning-the-github-triage-role-to-external-collaborators
> Projects may assign external (non-committer) collaborators the triage
role for their repository. This allows them to assign, edit, and close
issues and pull requests, without giving them write-access to the code.



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## Are these changes tested?

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Author: kevinjqliu

.asf.yaml

@@ -52,6 +52,8 @@ github:
   collaborators:
     - JanKaul
     - c-thiel
+    - mbutrovich
+    - CTTY
   ghp_branch: gh-pages
   ghp_path: /